137799539 has 2 divisors, whose sum is σ = 137799540. Its totient is φ = 137799538.

The previous prime is 137799527. The next prime is 137799547. The reversal of 137799539 is 935997731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137799539 - 2⁸ = 137799283 is a prime.

It is a super-2 number, since 2×137799539² = 37977425897225042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (137799139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68899769 + 68899770.

It is an arithmetic number, because the mean of its divisors is an integer number (68899770).

Almost surely, 2^137799539 is an apocalyptic number.

137799539 is a deficient number, since it is larger than the sum of its proper divisors (1).

137799539 is an equidigital number, since it uses as much as digits as its factorization.

137799539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1607445, while the sum is 53.

The square root of 137799539 is about 11738.8048369500. The cubic root of 137799539 is about 516.5145836576.

The spelling of 137799539 in words is "one hundred thirty-seven million, seven hundred ninety-nine thousand, five hundred thirty-nine".